北京市春季不同雾霾天挥发性有机物特征研究  

Characteristics of Volatile Organic Compounds from Different Haze Days in Spring of Beijing

作　　者：胡春芳[1] 田媛[1] 李科[1] 

机构地区：[1]北京工商大学环境科学与工程系,北京100048

出　　处：《广东化工》2017年第21期127-128,133,共3页Guangdong Chemical Industry

摘　　要：文章主要研究北京市春季不同雾霾天气对大气中挥发性有机物(VOCs)特征的影响。选取北京工商大学东校区西门作为采样点,使用采样吸附管和大气采样器采集空气中VOCs,采用热脱附-气质联用仪(TDS-GC-MS)测定空气中可挥发有机物的组分。分析数据得出:在轻度雾霾时,检测出12种VOCs,以烷烃类化合物和烯烃类化合物为主;在中度雾霾时,检测出33种VOCs,其中有少量的芳香烃类化合物;在重度雾霾时,检测出43种VOCs,烷烃类、芳香烃类、醛类化合物所占比例较大。由此得出结论,大气中VOCs的种类与雾霾污染程度(PM_(2.5)浓度)有一定的关系,严重雾霾会影响人体健康。The article studied the effects of different fog and haze on the volatile organic compounds （VOCs）in the spring of Beijing. The experiment selected the west gate of east campus in Beijing technology and Business University as the sampling point, used sample adsorption tubes and air sampler to collect VOCs in the air, and used Thermal Desorption-Gas Chromatograph-Mass Spectrometer （TDS-GC-MS） to determine the component of VOCs in the air. The results showed that in mild haze, the twelve kinds of VOCs were detected, and the main compounds were alkanes and alkenes; In moderate haze, the thirty-three kinds of VOCs were detected, including a small amount of aromatic hydrocarbons; In severe haze, the forty-three kinds of VOCs were detected, the alkanes, aromatic hydrocarbons and aldehydes accounted for a larger proportion. In a word, the types of VOCs in the atmosphere were related to the atmospheric pollution concentration （PM2 5）. Serious haze will affect human＇s health.

关 键 词：雾霾 挥发性有机物 春季 特征变化 PM2.5 北京市 

分 类 号：TQ[化学工程]